Question:
How many of the following have five radial nodes?
5s, 6s, 7s, 6p and 4p
How many of the following have five radial nodes?
5s, 6s, 7s, 6p and 4p
5s, 6s, 7s, 6p and 4p
Updated On: Feb 21, 2024
Hide Solution
Verified By Collegedunia
Correct Answer: 6
Solution and Explanation
The number of radial nodes for an electron in an orbital is given by n - l - 1, where n is the principal quantum number and l is the azimuthal quantum number.
For an s orbital, l = 0, so the number of radial nodes is n - 1. For a p orbital, l = 1, so the number of radial nodes is n - 2.
Therefore, the number of radial nodes for each of the orbitals are:
5s: 5 - 1 - 0 = 4 radial nodes
6s: 6 - 1 - 0 = 5 radial nodes
7s: 7 - 1 - 0 = 6 radial nodes
6p: 6 - 2 - 1 = 3 radial nodes
4p: 4 - 2 - 1 = 1 radial node
Only the 6s orbital has five radial nodes. Therefore, only one of the given orbitals has five radial nodes.
Answer. 6s
For an s orbital, l = 0, so the number of radial nodes is n - 1. For a p orbital, l = 1, so the number of radial nodes is n - 2.
Therefore, the number of radial nodes for each of the orbitals are:
5s: 5 - 1 - 0 = 4 radial nodes
6s: 6 - 1 - 0 = 5 radial nodes
7s: 7 - 1 - 0 = 6 radial nodes
6p: 6 - 2 - 1 = 3 radial nodes
4p: 4 - 2 - 1 = 1 radial node
Only the 6s orbital has five radial nodes. Therefore, only one of the given orbitals has five radial nodes.
Answer. 6s
Was this answer helpful?
1
0
Top Questions on p -Block Elements
- $\textbf{Choose the correct statements about the hydrides of group 15 elements.}$
A. The stability of the hydrides decreases in the order \(\text{NH}_3 > \text{PH}_3 > \text{AsH}_3 > \text{SbH}_3 > \text{BiH}_3\)
B. The reducing ability of the hydrides increases in the order \(\text{NH}_3 < \text{PH}_3 < \text{AsH}_3 < \text{SbH}_3 < \text{BiH}_3\)
C. Among the hydrides, \(\text{NH}_3\) is a strong reducing agent while \(\text{BiH}_3\) is a mild reducing agent.
D. The basicity of the hydrides increases in the order \(\text{NH}_3 < \text{PH}_3 < \text{AsH}_3 < \text{SbH}_3 < \text{BiH}_3\)
Choose the most appropriate from the option given below:- JEE Main - 2024
- Chemistry
- p -Block Elements
- Identify the correct statements about p-block elements and their compounds.
(A) Non metals have higher electronegativity than metals.
(B) Non metals have lower ionisation enthalpy than metals.
(C) Compounds formed between highly reactive nonmetals and highly reactive metals are generally ionic.
(D) The non-metal oxides are generally basic in nature.
(E) The metal oxides are generally acidic or neutral in nature.- JEE Main - 2024
- Chemistry
- p -Block Elements
- $\textbf{Reduction potential of ions are given below:}$
\[ \begin{array}{ccc} \text{ClO}_4^- & \text{IO}_4^- & \text{BrO}_4^- \\ E^\circ = 1.19 \, \text{V} & E^\circ = 1.65 \, \text{V} & E^\circ = 1.74 \, \text{V} \\ \end{array} \]
The correct order of their oxidising power is:- JEE Main - 2024
- Chemistry
- p -Block Elements
The number of oxygen atoms present in chemical formula of fuming sulphuric acid is _______.
- JEE Main - 2024
- Chemistry
- p -Block Elements
- Mg(NO3)2. XH2O and Ba(NO3)2.YH2O, represent formula of the crystalline forms of nitrate salts. Sum of X and Y is _____________ .
- JEE Main - 2023
- Chemistry
- p -Block Elements
View More Questions
Questions Asked in JEE Main exam
- The remainder when \(64^{{32}^{32}}\) is divided by 9 is.
- JEE Main - 2024
- Number Systems
- The square of the distance of the image of the point \( (6, 1, 5) \) in the line \[ \frac{x - 1}{3} = \frac{y}{2} = \frac{z - 2}{4}, \] from the origin is _____ .
- JEE Main - 2024
- 3D Geometry
- Number of compounds from the following which cannot undergo Friedel-Crafts reactions is :____
toluene, nitrobenzene, xylene, cumene, aniline, chlorobenzene, m-nitroaniline, m-dinitrobenzene- JEE Main - 2024
- Organic Chemistry
- Two infinite current carrying wires having current I in opposite directions are shown below.
Find the magnetic field in S.I units, at point- JEE Main - 2024
- Current electricity
- The area of the region enclosed by the parabolas \( y = x^2 - 5x \) and \( y = 7x - x^2 \) is _________.
- JEE Main - 2024
- Calculus
View More Questions
Concepts Used:
P-Block Elements
- P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
- P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.
P block elements consist of:
- Group 13 Elements: Boron family
- Group 14 Elements: Carbon family
- Group 15 Elements: Nitrogen family
- Group 16 Elements: Oxygen family
- Group 17 Elements: Fluorine family
- Group 18 Elements: Neon family